HUMIDIFIER & 2-IN-1 ESSENTIAL OIL DIFFUSER: Smart LED lights combined with spray humidifier to create a realistic flame effect. You can add 3-5 drops of your favorite essential oil during use to relieve fatigue, moisturize skin and relieve stress. WARM LIGHT EFFECT: The warm glow effect of this essential oil diffuser makes it an excellent choice for creating a warm and relaxed atmosphere. It can be used as a night light for a child's room or as a decorative element in your living room. ULTRA QUIET: Noise can be controlled by simple operation. &àgrave; less than 25dB when the diffuser is on. Improve the quality of your work your sleep and calm your mood, relieve your stress when you are working, studying, doing yoga or spa. Automatic Shut-Off Without Water: The diffuser comes with a built-in device. With a 150ml water tank, it can work continuously for about 6 hours, and the air diffuser will stop automatically when there is water shortage, which is safe and reliable. Water Shortage